Pelting-machine



(No Model.) 3 Sheets-Sheet 1.

H. W. FRENCH. PBLTING MACHINE.

No. 425,604. Patented Apr. '15, 1890.

(No Medel.) Y 3 sheets-sheet 2.

H. W. FRENCH.

vPBLTING MACHINE.

No. 425,604. Peteeted Apr. 15, 1890.

A A f'um l (No Model.)

A v 3 Sheets-Sheet 3. H. W. FRENCH. PBLTING MACHINE.

Patented Apr. v15, 1890.v

4o f. Two pulleys n, located, respectively,upon

vUNITED STATES PATENT @rrrcn HIRAM W. FRENCH, OF ALLEGHENY, PENNSYLVANIA.

FELTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 425,604, dated April 15, 1890.

Application filed November 1S, 1889. Serial No. 330,644. (No model.)

To all whom t may concern,.-

Be it known that I, HIRAM W. FRENCH, a citizen of the United States, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Felting- Machines; and I do hereby declare the following to be a full, clear, and eX'act description of the invention, such as will en able others skilled in the art to which it appertains to make and use the same.

My invention relates to a reciprocating felting-machine, and has for its object the treatment of a'larger amount of material in a more efficient manner than has hitherto been accomplished.

I/Vith this end in View my invention consists in the peculiar features and novel combinations more fully described hereinafter, and pointed out in the claims.

In the accompanying drawings, Figure 1 represents a front elevation of my machine; Fig. 2, a side elevation; Fig. 3, a top view; Fig. 4, a perspective View of the steaming-table; and Figs. 5, 6, 7, 8, and 9, detail views.

The reference-letter a represents the feltreceiving bed-plate, which is secured toand supported upon the channel-beams f, and these beams are anchored to the foundation b by means of bolts c, passing through lateral anges d CZ. A reciprocating platen m operates over the bed-plate a, being actuated by driving-rods t', having one end yoked to double eccentrics upon the drive-shaft g and the other end connected to a transverse rod j, mounted in lugs la, rising from the top of theplaten. The driveshaft g is mounted in boxes oin the top of standards e, cast integral with and rising from the channel-beams opposite ends of the shaft, give it a smooth and uniform motion, while the rigid channelbeams and standards add great strength and durability to the machine. Each of the double eccentrics comprises an offset h in the driveshaft g and an adjustable eccentric collar a surrounding this offset. The driving -rod yokes u embrace the eccentric collars u and are confined thereon by annular bosses c, cast integral with the collar. One of the bosses o is provided with setscrews w, passing through a threaded aperture and `Aentering an annular groove Q0 in the offset h. This arrangement prevents the collar from slipping laterally and permits it to be adjusted around the odset for the purpose of regulating the throw of the driving-rods, and hence the plate, for by shifting the collar to the position shown in Fig. 8 the longest stroke is obtained, and by shifting it to the position shown in Fig. 9 no stroke whatever will be given. Intermediate adjustments permit the length of stroke to be regulated with the greatest precision, whereby the machine can be adjusted to operate upon stock of any desired thickness.

Vithout the annular grooves in the offset h the adjustment of the eccentric collar would be more difficult and the end of the set-screws would indent and burr the shaft; but by its employment these difficulties are avoided. The groove ir serves to guide the collar in a true'path around the offset during the adjusting operation by means of the rounded ends of the screws w, which enter the groove, and by this arrangement the burring of the shaft is prevented. The opposite ends of the platen m are provided with buffers II Y1'I,which impingere spectively, upon the stops r and r, and are depressed at the end of each backward and forward movement of the platen for the purpose of deadening the shock incident to the reversalof movement, and their reactive force greatly assists in giving it the initial movement in reversing the s1 roke, Hence it will be seen that this feature lessens the strain upon the machinery and renders its operation smooth and uniform.

The bottom of the platen m is provided with smallcorrugations m', running in a direction parallel with the motion of the platen, and the bed-plate a is also provided with similar corrugations f', extending transversely to those in the upper platen. These grooves hold the material firmly Vupon the bed-plate during the process of forming.

In order to raise the top plate for the insertion and removal of material, a pair of jacks s are arranged upon the front and rear of the machine, as will be seen in Figs. l, 2, and 3. Each of these jacks comprises a hollow pedestal y, anchored to the foundation b, a vertical bar s', with a rack w in its side and of a drive-shaft having eccentrics provided with adjustable eccentric collars, whereby the length of the stroke of said plate is regulated, in the manner and for the purpose substantially as described.

8. In a felting-machine, a drive-shaft having an eccentric provided With an annular groove, in combination with an adjustable eccentric collar provided with set-screws having their ends arranged to enter said groove, in the manner and for the purpose substantially as described.

9. In a felting-machine, a steaming-table having a sloping bottom and open top, in combination With steaming-.pipes arranged -15 and adapted to operate in the manner and for the purpose substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

HIRAM W. FRENCH. Witnesses:

G. W. WURZELL, CHAS. F. MCKENNA. 

